> ## Documentation Index > Fetch the complete documentation index at: https://docs.germainux.com/llms.txt > Use this file to discover all available pages before exploring further. # Prometheus Metrics > GermainUX exposes Prometheus-formatted metrics for monitoring, dashboarding, and alerting. Service `Management` Availability 2016.1 or later > [card] [Service endpoints](#service-endpoints) > > Where metrics are exposed > [card] [Third-party service metrics](#third-party-service-metrics) > > Vendor-enabled metric sources > [card] [Metric reference](#metric-reference) > > Names, types and units ## Overview GermainUX exposes Prometheus-formatted metrics for monitoring, dashboarding, and alerting. Use the endpoints and metric reference below to integrate GermainUX services with Prometheus or another compatible observability platform. ## Service endpoints | Service | Endpoint | | - | - | | Action | `:/actuator/prometheus` | | Aggregation | `:/actuator/prometheus` | | Analytics | `:/actuator/prometheus` | | Server REST | `:/actuator/prometheus` | | Server Ingestion | `:/ingestion/actuator/prometheus` | | Session | `:/actuator/prometheus` | | Storage | `:/actuator/prometheus` | > [!NOTE] > > **Authentication:** By default, the Action, Aggregation, Analytics, and Server endpoints can be accessed without authentication. Review your deployment and network-security configuration before exposing these endpoints outside a trusted environment. ## Third-party service metrics GermainUX deployments may also use third-party services that can expose Prometheus metrics. Follow the vendor documentation to enable and configure those metrics. | Service | Documentation | | - | - | | Apache ZooKeeper | [Monitoring Apache ZooKeeper](https://zookeeper.apache.org/doc/current/zookeeperMonitor.html) | | Hazelcast Management Center (Enterprise) | [Prometheus monitoring](https://docs.hazelcast.com/management-center/5.3/integrate/prometheus-monitoring) | ## Metric reference The following tables list the available metric names, metric types, descriptions, and units for each GermainUX service. A blank description or unit means that the source configuration does not define one. ### REST Server metrics | Metric name | Type | Description | Unit | | - | - | - | - | | application\_ready\_time\_seconds | Gauge | | Seconds | | application\_started\_time\_seconds | Gauge | | Seconds | | disk\_total\_bytes | Gauge | Total disk size | Bytes | | executor\_active\_threads | Gauge | | | | executor\_completed\_tasks\_total | Counter | | | | executor\_pool\_max\_threads | Gauge | | | | executor\_pool\_size\_threads | Gauge | Number of threads in a thread pool executor | | | executor\_queue\_remaining\_tasks | Gauge | Number of tasks still pending in the queue | | | executor\_queued\_tasks | Gauge | Tasks waiting to be executed | | | germain\_mail\_total | Counter | Number of emails sent | | | hikaricp\_connections | Gauge | Number of connections | | | hikaricp\_connections\_acquire\_seconds | Summary | Connection acquire time | Seconds | | hikaricp\_connections\_acquire\_seconds\_max | Gauge | Max of connection acquire time | Seconds | | hikaricp\_connections\_active | Gauge | Number of active connections | | | hikaricp\_connections\_creation\_seconds | Summary | Connection creation time | Seconds | | hikaricp\_connections\_creation\_seconds\_max | Gauge | Max of creation connection time | Seconds | | hikaricp\_connections\_idle | Gauge | Number of idle connections | | | hikaricp\_connections\_max | Gauge | Max number of connections | | | hikaricp\_connections\_pending | Gauge | Number of pending connections | | | hikaricp\_connections\_timeout\_total | Counter | Total number of timeout connections | | | hikaricp\_connections\_usage\_seconds | Summary | Connection usage time | Seconds | | hikaricp\_connections\_usage\_seconds\_max | Gauge | Max of connection usage time | Seconds | | http\_server\_requests\_active\_seconds | Summary | | Seconds | | http\_server\_requests\_active\_seconds\_max | Gauge | Maximum time a request has been active | Seconds | | http\_server\_requests\_seconds | Summary | | Seconds | | http\_server\_requests\_seconds\_max | Gauge | Max response time for HTTP requests | Seconds | | jvm\_buffer\_count\_buffers | Gauge | An estimate of the number of buffers in the pool | | | jvm\_buffer\_memory\_used\_bytes | Gauge | An estimate of the memory that the Java virtual machine is using for this buffer pool | Bytes | | jvm\_buffer\_total\_capacity\_bytes | Gauge | An estimate of the total capacity of the buffers in this pool | Bytes | | jvm\_classes\_loaded\_classes | Gauge | The number of classes that are currently loaded in the Java virtual machine | | | jvm\_classes\_unloaded\_classes\_total | Counter | The total number of classes unloaded since the Java virtual machine has started execution | | | jvm\_compilation\_time\_ms\_total | Counter | | Milliseconds | | jvm\_gc\_live\_data\_size\_bytes | Gauge | Size of long-lived heap memory pool after reclamation | Bytes | | jvm\_gc\_memory\_allocated\_bytes\_total | Counter | Incremented for an increase in the size of the (young) heap memory pool after one GC to before the next | Bytes | | jvm\_gc\_memory\_promoted\_bytes\_total | Counter | Count of positive increases in the size of the old generation memory pool before GC to after GC | Bytes | | jvm\_gc\_overhead\_percent | Gauge | An approximation of the percent of CPU time used by GC activities over the last lookback period or since monitoring began, whichever is shorter, in the range \[0..1] | | | jvm\_gc\_pause\_seconds | Summary | Time spent in GC pause | Seconds | | jvm\_gc\_pause\_seconds\_max | Gauge | Time spent in GC pause | | | jvm\_info | Gauge | JVM information | | | jvm\_memory\_max\_bytes | Gauge | The maximum amount of memory in bytes that can be used for memory management | Bytes | | jvm\_memory\_usage\_after\_gc\_percent | Gauge | The percentage of long-lived heap pool used after the last GC event, in the range \[0..1] | | | jvm\_memory\_used\_bytes | Gauge | The amount of used memory | Bytes | | jvm\_threads\_daemon\_threads | Gauge | The current number of live daemon threads | | | jvm\_threads\_live\_threads | Gauge | The current number of live threads including both daemon and non-daemon threads | | | jvm\_threads\_peak\_threads | Gauge | The peak live thread count since the Java virtual machine started or peak was reset | | | jvm\_threads\_started\_threads\_total | Counter | | | | jvm\_threads\_states\_threads | Gauge | The current number of threads | | | logback\_events\_total | Counter | Number of events that made it to the logs | | | process\_cpu\_usage | Gauge | The "recent cpu usage" for the Java Virtual Machine process | | | process\_files\_max\_files | Gauge | The maximum file descriptor count | | | process\_files\_open\_files | Gauge | The open file descriptor count | | | process\_start\_time\_seconds | Gauge | Start time of the process since unix epoch | Seconds | | process\_uptime\_seconds | Gauge | The uptime of the Java virtual machine | Seconds | | spring\_kafka\_listener\_seconds | Summary | | Seconds | | spring\_kafka\_template\_seconds | Summary | | Seconds | | spring\_kafka\_template\_seconds\_max | Gauge | | Seconds | | system\_cpu\_count | Gauge | The number of processors available to the Java virtual machine | | | system\_cpu\_usage | Gauge | The "recent cpu usage" of the system the application is running in | | | system\_load\_average\_1m | Gauge | The sum of the number of runnable entities queued to available processors and the number of runnable entities running on the available processors averaged over a period of time | | | tasks\_scheduled\_execution\_active\_seconds | Summary | | Seconds | | tasks\_scheduled\_execution\_active\_seconds\_max | Gauge | | Seconds | | tasks\_scheduled\_execution\_seconds | Summary | | Seconds | | tomcat\_cache\_access\_total | Counter | | | | tomcat\_cache\_hit\_total | Counter | | | | tomcat\_connections\_config\_max\_connections | Gauge | | | | tomcat\_connections\_current\_connections | Gauge | | | | tomcat\_connections\_keepalive\_current\_connections | Gauge | | | | tomcat\_global\_error\_total | Counter | | | | tomcat\_global\_received\_bytes\_total | Counter | | Bytes | | tomcat\_global\_request\_max\_seconds | Gauge | Max time a single request can take to complete before it is terminated | Seconds | | tomcat\_global\_request\_seconds | Summary | | Seconds | | tomcat\_global\_sent\_bytes\_total | Counter | | Bytes | | tomcat\_servlet\_error\_total | Counter | | | | tomcat\_servlet\_request\_max\_seconds | Gauge | | Seconds | | tomcat\_servlet\_request\_seconds | Summary | | Seconds | | tomcat\_threads\_busy\_threads | Gauge | | | | tomcat\_threads\_config\_max\_threads | Gauge | Max number of threads a connector can handle simultaneously | | ### Ingestion Server metrics | Metric name | Type | Description | Unit | | - | - | - | - | | application\_ready\_time\_seconds | Gauge | | Seconds | | application\_started\_time\_seconds | Gauge | | Seconds | | disk\_free\_bytes | Gauge | Free space in disk | Bytes | | disk\_total\_bytes | Gauge | Total disk size | Bytes | | executor\_active\_threads | Gauge | Number of active threads in the executor | | | executor\_completed\_tasks\_total | Counter | | | | executor\_pool\_core\_threads | Gauge | | | | executor\_pool\_max\_threads | Gauge | | | | executor\_pool\_size\_threads | Gauge | Number of threads in a thread pool executor | | | executor\_queue\_remaining\_tasks | Gauge | Number of tasks still pending in the queue | | | executor\_queued\_tasks | Gauge | Tasks waiting to be executed | | | germain\_ingestion\_agentMessages\_total | Counter | Number of messages from GermainUX agents processed since service was started | | | germain\_ingestion\_engineMessages\_total | Counter | Number of messages from GermainUX engines processed since service was started | | | germain\_ingestion\_facts\_total | Counter | Total number of facts ingested since service was started | | | germain\_ingestion\_fragments\_total | Counter | Number of UX replay fragments processed since service was started | | | hikaricp\_connections | Gauge | Number of connections | | | hikaricp\_connections\_acquire\_seconds | Summary | Connection acquire time | Seconds | | hikaricp\_connections\_acquire\_seconds\_max | Gauge | Max of connection acquire time | | | hikaricp\_connections\_active | Gauge | Number of active connections | | | hikaricp\_connections\_creation\_seconds | Summary | Connection creation time | Seconds | | hikaricp\_connections\_creation\_seconds\_max | Gauge | Max of connection creation time | Seconds | | hikaricp\_connections\_idle | Gauge | Number of idle connections | | | hikaricp\_connections\_max | Gauge | Max number of connections | | | hikaricp\_connections\_min | Gauge | Min number of connections | | | hikaricp\_connections\_pending | Gauge | Number of pending connections | | | hikaricp\_connections\_timeout\_total | Counter | Total number of timeout connections | | | hikaricp\_connections\_usage\_seconds | Summary | Connection usage time | Seconds | | hikaricp\_connections\_usage\_seconds\_max | Gauge | Max of connection usage time | Seconds | | http\_server\_requests\_active\_seconds | Summary | | Seconds | | http\_server\_requests\_active\_seconds\_max | Gauge | Maximum time a request has been active | Seconds | | http\_server\_requests\_seconds | Summary | | Seconds | | http\_server\_requests\_seconds\_max | Gauge | Max response time for HTTP requests | Seconds | | jdbc\_connections\_active | Gauge | | | | jdbc\_connections\_idle | Gauge | | | | jdbc\_connections\_max | Gauge | Max JDBC connections | | | jdbc\_connections\_min | Gauge | Min number of JDBC connections | | ### Storage metrics | Metric name | Type | Description | Unit | | - | - | - | - | | application\_ready\_time\_seconds | Gauge | | | | application\_started\_time\_seconds | Gauge | | Seconds | | disk\_free\_bytes | Gauge | Free space in disk | Bytes | | disk\_total\_bytes | Gauge | Total disk size | Bytes | | executor\_active\_threads | Gauge | Number of active threads in the executor | | | executor\_completed\_tasks\_total | Counter | | | | executor\_pool\_core\_threads | Gauge | | | | executor\_pool\_max\_threads | Gauge | | | | executor\_pool\_size\_threads | Gauge | Number of threads in a thread pool executor | | | executor\_queue\_remaining\_tasks | | | | ## Get Help > [card] [Contact GermainUX Support](https://docs.germainux.com/main/support.md) > > The GermainUX team helps you get up and running faster, empower your team, turn data into actionable insights, and optimize performance to deliver measurable business outcomes. > [card] Can't find what you need? > > Search all GermainUX docs with **Ctrl + K**, or use the feedback buttons at the bottom of this page to tell us what is missing. 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